Apples are very nutritious and contain a variety of vitamins and acids. An apple contains more than 30 mg of flavonoids. Apple contains 15% carbohydrates and pectin. It is also rich in vitamins A, C, E, potassium and antioxidants. 1 apple (154g) has 5g of dietary fiber, 170mg of potassium, 10mg of calcium, 22g of carbohydrates, 10mg of phosphorus, 7.8g of Vc, 7.8g of Vb. The calcium content in apples is much richer than that of ordinary fruits, which helps metabolize excess salt in the body. Malic acid can metabolize heat and prevent lower body obesity. As for the soluble fiber pectin, it can solve constipation. Pectin can also promote the discharge of lead, mercury, and manganese in the gastrointestinal tract, regulate the body's blood sugar level, and prevent sudden rises and falls in blood sugar.

German scientists found that the pectin in apples can lower cholesterol. Dutch scholars have found from long-term investigations that people who eat an apple a day increase the amount of bile discharge and the concentration of bile acids, which helps the liver to discharge more cholesterol. The polyphenols and flavonoids contained in apples are natural chemical antioxidants that can promptly remove metabolic "garbage" from the body. Eating cooked apples can treat constipation. Eat shredded raw apples, the pectin can stop mild diarrhea.

Malic acid can stabilize blood sugar and prevent diabetes in the elderly, so people with diabetes should eat sour apples. The sugar, lithium, and bromine contained in apples are an effective sedative sleeping pill without side effects. Apples contain zinc and magnesium. Therefore, eating apples regularly can enhance memory and promote the development of children. Because some elements in apples can eliminate lead and mercury elements that are harmful to health in the body, European scientists call apples an anti-cancer drug.

Nutritional components of apples

Table 1 General ingredient units in apples: mg/100g

Name

Moisture (%)< /p>

Protein

Fat

Total sugar

Crude fiber

Calories (kcal)

84.6

200-400

500-600

1300—1500

100— 120

58

Table 2 Amino acid content in apples Unit: g/100g

Name

Content

Name

Content

Aspartic acid

0.128

Methionine

0.008

Threonchloric acid

0.018

Isoleucine

0.015

Serine

0.020

Leucine

0.026

Glutamic acid

0.052

Tyrosine

0.009

Proline

0.020.

Phenylalanine

0.011

Glycine

0.041

Lysine

0.016

Alanine

0.018

Arginine

0.006

Cystine

Micro

group Acid

0.006

Valine

0.15

Total

0.382< /p>

Table 3 Mineral content in fresh apples Unit: mg/100g

Name

Content

Name

Content

Ash (g)

0.2-0.3

Potassium

110-139

9—22

Iron

0.1—0.3

Phosphorus

3—9

Zinc

0.05

Sodium

0.4—1.0

Copper

0.04

Magnesium

4.8-8.1

Chlorine

0. 8

Table 4 Vitamin content units in apples: mg/100g

Name

Content

Name

Vitamin E

0.31-0.74

Vitamin B5

0.11

5-7.0

Vitamin B6

0.03

Vitamin B1

0.01—0.03

Vitamin H (ug)

0.9—6.0

Vitamin B2

0.01-0.02

Folic acid (ug)

2.0-8.0

Analysis of nutritional value and therapeutic effect of apple fruit

Apples contain 17 kinds of amino acids, 7 of which are essential for the human body but cannot be synthesized by itself. Apples contain vitamin H, which is rare among other fruits. Its role in human physiological functions is mainly an important coenzyme in the intermediate metabolism of sugar, protein and fat in the human body, and participates in many carboxylation reactions.

Apples contain trace elements chlorine, which is the main component of gastric acid and the main anion in extracellular fluid. It maintains water balance, osmotic pressure and acid-base balance in the body, and activates amylase in saliva. plays an important role. If the human body lacks this element, it will manifest as loss of appetite, seriously affecting physiological balance, and hindering the digestion and absorption of food.

From the perspective of health and medical value, my country has a long history of using apples to treat diseases.

It has been recorded in "Qian Jin Shi Zhi" of the Tang Dynasty that apples have the effect of "replenishing qi". "Essentials of Diet" says that apples have the effect of "producing body fluids and quenching thirst". "Southern Yunnan Materia Medica" further explains that apples can "treat spleen deficiency and excessive fire, and tonify the middle and replenish qi." "Sui Xiju Diet Manual" says that apples can "moisten the lungs, please the heart, produce fluid and stimulate the appetite." There is a European proverb, "An apple a day keeps the doctor away", which shows that apples and their drinks have good health care effects.

In modern medical research, Germany’s “Morrow’s Apple Therapy” is effective in treating enteritis and diarrhea. This is because apples contain tannins and a variety of fruit acids that can help digest food, promote gastric astringency, and accelerate the digestion and absorption of food.

In addition, apples are rich in inorganic salts, of which potassium and magnesium salts have a protective effect on cardiovascular systems. Apples and their drinks also contain the inorganic element zinc. Japanese researchers use apples as the most popular fruit of choice in zinc deficiency treatments.